316311293 has 2 divisors, whose sum is σ = 316311294. Its totient is φ = 316311292.

The previous prime is 316311287. The next prime is 316311313. The reversal of 316311293 is 392113613.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 315488644 + 822649 = 17762^2 + 907^2 .

It is a cyclic number.

It is not a de Polignac number, because 316311293 - 2¹² = 316307197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (316311253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158155646 + 158155647.

It is an arithmetic number, because the mean of its divisors is an integer number (158155647).

Almost surely, 2^316311293 is an apocalyptic number.

It is an amenable number.

316311293 is a deficient number, since it is larger than the sum of its proper divisors (1).

316311293 is an equidigital number, since it uses as much as digits as its factorization.

316311293 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2916, while the sum is 29.

The square root of 316311293 is about 17785.1424790469. The cubic root of 316311293 is about 681.3520482541.

The spelling of 316311293 in words is "three hundred sixteen million, three hundred eleven thousand, two hundred ninety-three".